Key Processing Technologies for Flexible Cover Glass in 2026

Flexible cover glass (UTG) has become a core focus of the cover glass processing industry, thanks to the rising demand for foldable devices.

The core processing technologies include deep ion exchange and precision thinning.

Deep ion exchange creates a high-stress layer on the glass surface, allowing ultra-thin (as thin as 0.03mm) glass to withstand over 600,000 folds without damage.

Precision thinning, using melt drawing or post-production thinning, controls thickness tolerance within ±2μm, ensuring optical consistency.

Leading manufacturers like Corning and Schott optimize these processes to balance flexibility and durability, addressing the long-standing crease issue in foldable devices and supporting the segment's 33% year-over-year growth.